Foot correction



Dec. 16; 1941. J. J. KOHN F001 CORRECTION Filed May 25, 1939 INVENTORATTORNEYS WITNESS Patented Dec. 16, 1941 242 3 3 7 G GHQ J- ;lfie Miami,Ea! Amiliee en ai 5; Seine/ N0: 215,710

My in e tion relates to the menuiae ure. o shoes. and. h s a ong i sobje ts and advantages the provision at impr ved last. e ign d toPattern shoes novel moi. c rr ction p op-- erties.

Most al me hanical feet: roubles a s by mis ignm n i the.- he l he e-Aliemnent oi the forefoo is automaticall contro led by the ative postion oi the eel boner Proper tee action necessary to bring the 1 5. intop y to t end tha the lat er may he Pro erl exercised, I-nactiv legmuscles ecome weak and it naturally follows that the ,fo t also becomes.weak. Correct foot alignment and actienivr quires that. the great toe bebrought. into. ac ion. Misa ignment off the root. either b alienationeversiom will pr vent the great tee from. tunenin r p r yor ect wei htdist buti n throughout the footis determined by the relative: positionof the heel l 1 e.v Proper alignmentof the foot structure may be had,through proper a i nment of the hee oney and conve t n footwear issovdgsignedr as, to de eat. proper align.- ment of the, heel b ne.

Accordingly, an ob ec or my nvent on is, to provide a. last designed.,for the menuiaetnre of. shoes contou d so as to enabl thes o ot totune: tion pr per y iii-a di ion o e -r citing the mele aligned. foot.to, the end that the bon s ru tu e may be properly aligne wh eh in bings the leg muscles intoplay. e shoe, constructed a c d n e w h m latri d si ner; a t eirectively ali n the heel b n and 1.1 1 1 it inDesition, whi e the gene al sho et ue ure will e uch as to cradle the.foot. ior. bringing its. natural upp rtin elements intoipreper alignmentto. the end th t the. ent re root may ha e "normal rune.- tion. 7

In he. accompanying thawi g;

Figu i an ins de .eleva Qnel View .Qf'e. i ht foot las in man e We mynvention;

Figure 215 a bottom plan view;

i u e .3 is arear elevational view;

Figure 41s a front elevational view with a part broken away for the sakeof clearness;

Figure 5 is a cross sectional view of a shoe designed in accordance withmy last structure, with the section taken transversely of the shoe inthe plane of the ball of the foot;

Figure 6 is a transverse sectional view of the heel structure of theshoe; and

Figure 7 is a rear elevational view of a human heel bone.

In the embodiment selected to illustrate my invention, I make use of alast l0 wherein the wit he ast sh e.so1e truetnre?fl ,A di ional th lsees Z l meuehent an area co resp nding to the reces H; as viewing i 'l'ie enedl area 3 ep re en y i t? the. flattened a ea 241 eelee met ie 21ill the efo e be n e d sif waited a a anaerheath the ut r boll. area ofhe ten with Penis to ti t the. tenet 11. it ns de bell area t9 brine thenatural n the bott m of the eat oe intoaetien i completin the .etep,

s n lu e the usl e m tai e seat 251! ut th seat s o. ded with a twir inl ed on. th inner sin e o the. eat 2h Aeeersh, the heel. s ruetureepzei'h hoe. will be chap aeteri ed by a d preesi n 3;; whieh QQREJtLL e e tie theaB X .34 i the he ltene 39-. laelioee. built n. a cord nce. witheenren ienal' t e hee v s ruetare hat 4 Q makes no @QQQWQQQ? tionWhatever o t e. a

Tnusvwhenweigntis tranemr te tfthe iieel he of a foot wearing aconventional shoe, as

he: "the- "e which turn. :2 t the ie B ave alie iine, the bone structureof the foot, requires acc modation for the apex 34 of the heel bone ithe latter may i wardly to secure 121 9 alig ment- Ihe de re sion. .33 o6- menutes a seet er. th a ex s thatt ie heelhene 36 w llb p op rly alaned i tru ali nment which t ite m t re uires that the h l. home b turnedinwardl an the se t i ee iehe to restrain the heel bone from tilting inan outward direction.

In Fig. 1, I illustrate the instep and heel curvature and alignment of aconventional last in dotted lines 42. This portion of my last quarter isdropped beneath the conventional contour so as to permit the instep ofthe'foot to drop to accommodate inward tilting of the heel bone andturning of the foot inwardly and downwardly so as to bring the legmuscles into normal action. Fig. 2 illustrates the inside instepcurvature of a. conventional last in dotted lines 44, while the fullline illustration of my last has been somewhat straightened. Thus, theinstep structure of a shoe in accordance with the last is widened toprovide accommodation for the shift in the instep of the foot. The upperline 46 of the last has also been lowered with respect to theconventional line of the ordinary last, indicated in dotted lines 48. Inviewing Fig. 4, the cone Q8 of the last tilts inwardly with respect tothe Waist of a conventional last, the latter being indicated in dottedlines 50. Such realignment of the cone in the last provides a shoewherein a straight line 52, see Fig. 2, extends between the first andsecond metatarsals, substantially parallels the latter and intersectsthe protrusion 28. With the line considered as a plane, Fig. 4illustrates its position with respect to the cone 48" and the first andsecond metatarsals. 'In- Fig. 5, the shoe portion 52 is so fashioned byreason of the corresponding contour 54 of the last as to providesufiicient room to permit the foot to roll over properly on its firstmetatarsal. Last I is also fashioned full at 56 to give the third toeroom so that the foot can spread and each metatarsal head can carry itsweight.

A shoe formed in accordance with my invention permits free and properfoot action. Thus, in walking, the weight is first transmitted to theheel and then moves along the outer side of the foot to the outer ballwhen it is then transferred to the inside ball or first metatarsal byreason of the resulting elevation in the sole structure. The lift orelevation also functions to place tension on ,the outside of the foot toaid in supporting the ankle bone and heel bone in proper relativepositions. As the weight is transferred to the inside or inner ball ofthe foot, the depression in the heel structure of the shoe provides aseat for the heel of the foot and the heel structure has been dropped toprovide a cradle for accommodating the foot as it straightens. Thus, mylast provides a shoe characterized by a threepoint balance for the heel,the inner and outer balls of the foot. In this manner, the heel is heldin its proper position and the rest of the foot properly aligns itselfto the heel bone which is the controlling element or rudder for theentire foot. Maintaining the heel bone in proper aligninent maintainscorresponding alignment of the knee bone and the leg bones as well asthe pelvic joints.

While I have described certain embodiments ofmy invention in detail, itis, of course, understood that I do not desire to limit the scopethereof to the exact details set forth except in so far as those detailsmay be defined in the appended claims.

, I claim? 1. A shoe last having a heel seat forming area provided witha protrusion intersected by the longitudinal'axis of the last to providea depres- 'sion in the heel of a shoe formed on the last, saidprotrusion being located to form the depression'in the shoe in verticalalignment with the heel bone of the foot to which the shoe is fitted torotate the heel bone in a. medial direction, said longitudinal axissubstantially paralleling and being substantially located between thefirst and second metatarsals, said last having a cone located verticallyabove said longitudinal axis, and a shoe quarters forming portioncentered vertically of said longitudinal axis.

2. A shoe last having a heel seat forming area provided with aprotrusion intersected by the longitudinal axis of the last to provide adepression in the heel of a shoe formed on the last, said protrusionbeing located to form the depression in the shoe in vertical alignmentwith the heel bone of the foot to which the shoe is fitted torotate theheel bone in a medial direction, said longitudinal axis substantiallyparalleling and being substantially located between the firstand secondmetatarsals, said last having a cone located vertically above saidlongitudinal axis, a shoe quarters forming portion centered verticallyof said longitudinal axis, and said last being provided with a latera1ball forming area in the nature of a depression to provide an elevationin the corresponding sole structure of the shoe.

3. A shoe last having a heel seat forming area provided with aprotrusion intersected by the longitudinal axis of the last to provide adepression in'the heel of a shoe formed on the last, said protrusionbeing located to form the depression in the shoe in vertical alignmentwith the heel bone of the foot to which the shoe is fitted to rotate theheel bone in a medial direction, said longitudinal axis substantiallyparalleling and being substantially located between the first and secondmetatarsals, said last having a cone located vertically above saidlongitudinal axis, a shoe quarters forming portion centered verticallyof said longitudinal axis, and said last having a shank forming areawidened throughout the instep contour thereof.

4. A shoe last having a heel seat forming area provided with aprotrusion intersected by the longitudinal axis of the last to provide adepression in the heel of a shoe formed on the last, said protrusionbeing located to form the depression in the shoe in vertica1 alignmentwith the heel bone of the foot to which the shoe is fitted to rotate theheel bone in a medial direc tion, said longitudinal axis substantiallyparallelof the last and respect to conventional 1am JULES J.IKOHN.

